Lupinus cosentiniimore effectively utilizes low levels of phosphorus from superphosphate thanLupinus angustifolius

In a field experiment on a very sandy, slightly acidic soil in Western Australia, the relationship between yield and the level of phosphorus (P) applied was measured for two lupin species. The species were Lupinus cosentinii cv. Chapman, and L. angustifolius cv. Merrit. The P was applied once only to separate plots as single superphosphate in 1985, 1986, 1987, and 1993. The yield was measured in 1…